Link for New Ignition coil https://amzn.to/3qadVXP
Link for Multi meter get on here http://amzn.to/1Wj59mb

This video deals with How to test a Ignition coil on a honda gx120 but other coils maybe the same or very similar.

Primary coil resistance hook up 1 lead of the multimeter to the electrical tab and the other lead to the iron core making sure your meter is set to Ohms.

to check the secondary resistance hook up the multimeter to the iron core and inside the spark plug boot. Make sure readings are in the manufactures limits.
However I was suffering a phantom coil so sometimes this maybe tricking to figure out.

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